Eternal Security Does not make sense to me.... Why Do People Believe This?

By following what the Bible teaches us and we incorporate it into our lives we have a more fulfilling life. It gives you a true purpose in life as well as real joy that is long lasting. Ultimately as a Christ follower if you do not follow God's plan you will cause others to have doubts about the faith and cause them to miss out on the greatest gift ever given Salvation. It is not about me it is about others. Putting others before yourself. Married? It will end in divorce if you are not on guard!